PDF malware analysis — malicious · c509a0aef95c6a07

MALICIOUS

PDF

34.5 KB Created: 2010-01-05 16:18:19 +03:00 Authoring application: notGoodNot (via 3c03e7f05b5cbd91dffba3da4986bc1a)

MD5: f3702f9f41320ed53cc0503dce0ec3be SHA-1: 84559988107215fbe5791bdc44a15dd83c0413e3 SHA-256: c509a0aef95c6a07da38850ddccccee22acf693077f30aefe99b676d924e4c77

156 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by ClamAV (Pdf.Exploit.Agent-7291) and a machine learning classifier. It contains embedded JavaScript with eval() calls, indicating an attempt to execute arbitrary code. The presence of JavaScript actions and embedded JS streams strongly suggests the document is designed to exploit a PDF vulnerability to run malicious scripts.

Machine Learning

Nyx PDF Classifier malicious score 0.9975

Heuristics 6

ClamAV: Pdf.Exploit.Agent-7291 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-7291
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Optional Content Group with action trigger low PDF_OPTIONAL_CONTENT

Optional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0016_000.js` `51a70c6da346737f1d44d832152029819e7b5ff44c61553fb03267817236c18c`	pdf-javascript-stream	PDF /JS object 16 at offset 0x1FB1	36902 bytes
`javascript_obj0018_001.js` `abbd9524022184524559b8a62afb479375da52f31f464e1e3834039aa596c114`	pdf-javascript-stream	PDF /JS object 18 at offset 0x7E22	1795 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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